[Nix-dev] Overriding a node package

Mon Mar 9 14:38:31 CET 2015

I have a package (`pkgs.keybase-node-client` to be precise) which is
generated by `nodePackages.buildNodePackage`. I want to install it from my
local git repo.

I have no idea how node stuff works in nixpkgs (and not in nixpkgs,
actually), so I tried the obvious thing:

~~~~
  packageOverrides = pkgs_: {
    keybase-node-client = lib.overrideDerivation pkgs_.keybase-node-client
      (drv: {
        src = fetchgit {
          url = "/home/kirrun/proj/keybase/node-client";
          <...>
        };
      });
  };
~~~~

but this gives me a super-weird error when I try to install it:

~~~~
replacing old ‘keybase-node-client-0.7.7’
installing ‘keybase-node-client-0.7.7’
these derivations will be built:
  /nix/store/qsdsxcvnmn6hxs4kpi2mymmplwjq5kig-keybase-node-client-0.7.7.drv
building path(s)
‘/nix/store/16pd9zjj1dh9pc2lpij5p5xqji0b88ag-keybase-node-client-0.7.7’
building
/nix/store/16pd9zjj1dh9pc2lpij5p5xqji0b88ag-keybase-node-client-0.7.7
unpacking sources
unpacking source archive
/nix/store/m33g6lw3dg6455bqfnshhn73rn8710yz-node-client-7888c0d
source root is node-client-7888c0d
patching sources
configuring
'node_modules/iced-coffee-script' ->
'/nix/store/jhqn9ph542b8fc8ig8akq22sphbpi2ff-iced-coffee-script-1.7.1-g/lib/node_modules/iced-coffee-script'
<... (more lines like that) ...>
'node_modules/request' ->
'/nix/store/56b058k267wsf5nhb9n7cw89gi4l90km-node-request-2.30.0/lib/node_modules/request'
building
npm ERR! registry error parsing json
npm ERR! SyntaxError: Unexpected token <
npm ERR! <!doctype html>
npm ERR! <html>
npm ERR! <head>
npm ERR!     <title>Example Domain</title>
npm ERR!
npm ERR!     <meta charset="utf-8" />
npm ERR!     <meta http-equiv="Content-type" content="text/html;
charset=utf-8" />
npm ERR!     <meta name="viewport" content="width=device-width,
initial-scale=1" />
npm ERR!     <style type="text/css">
<... (strip boring CSS) ...>
npm ERR! <body>
npm ERR! <div>
npm ERR!     <h1>Example Domain</h1>
npm ERR!     <p>This domain is established to be used for illustrative
examples in documents. You may use this
npm ERR!     domain in examples without prior coordination or asking for
permission.</p>
npm ERR!     <p><a href="http://www.iana.org/domains/example">More
information...</a></p>
npm ERR! </div>
npm ERR! </body>
npm ERR! </html>
npm ERR!
npm ERR!     at Object.parse (native)
npm ERR!     at RegClient.<anonymous>
(/nix/store/liq47hvqy92ha47q123y0106pwv404j2-nodejs-0.10.33/lib/node_modules/npm/node_modules/npm-registry-client/lib/request.js:274:23)
npm ERR!     at Request._callback
(/nix/store/liq47hvqy92ha47q123y0106pwv404j2-nodejs-0.10.33/lib/node_modules/npm/node_modules/npm-registry-client/lib/request.js:246:65)
npm ERR!     at Request.self.callback
(/nix/store/liq47hvqy92ha47q123y0106pwv404j2-nodejs-0.10.33/lib/node_modules/npm/node_modules/request/request.js:236:22)
npm ERR!     at Request.emit (events.js:98:17)
npm ERR!     at Request.<anonymous>
(/nix/store/liq47hvqy92ha47q123y0106pwv404j2-nodejs-0.10.33/lib/node_modules/npm/node_modules/request/request.js:1142:14)
npm ERR!     at Request.emit (events.js:117:20)
npm ERR!     at IncomingMessage.<anonymous>
(/nix/store/liq47hvqy92ha47q123y0106pwv404j2-nodejs-0.10.33/lib/node_modules/npm/node_modules/request/request.js:1096:12)
npm ERR!     at IncomingMessage.emit (events.js:117:20)
npm ERR!     at _stream_readable.js:943:16
npm ERR! If you need help, you may report this *entire* log,
npm ERR! including the npm and node versions, at:
npm ERR!     <http://github.com/npm/npm/issues>

npm ERR! System Linux 3.18.2-gentookirNote
npm ERR! command
"/nix/store/liq47hvqy92ha47q123y0106pwv404j2-nodejs-0.10.33/bin/node"
"/nix/store/liq47hvqy92ha47q123y0106pwv404j2-nodejs-0.10.33/bin/npm"
"--registry" "http://www.example.com"
"--nodedir=/nix/store/5r47h9ipnlrpp05miaj6d3jzw9s7rdna-node-sources"
"install"
"/tmp/nix-build-keybase-node-client-0.7.7.drv-0/node-client-7888c0d"
npm ERR! cwd
/tmp/nix-build-keybase-node-client-0.7.7.drv-0/node-client-7888c0d/build-dir
npm ERR! node -v v0.10.33
npm ERR! npm -v 1.4.28
npm ERR! type unexpected_token
npm ERR! not ok code 0
builder for
‘/nix/store/qsdsxcvnmn6hxs4kpi2mymmplwjq5kig-keybase-node-client-0.7.7.drv’
failed with exit code 1
error: build of
‘/nix/store/qsdsxcvnmn6hxs4kpi2mymmplwjq5kig-keybase-node-client-0.7.7.drv’
failed
~~~~

So errr… looks like something is trying to download something from
example.com?
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